Need
the expression 0.07x+(x−300) models the final price of a television set with an instant rebate in a state that charges a sales tax. the sales tax is on the original price.

which expression represents the price of the television set after the instant rebate is applied but before the tax is applied?

a.) 0.07x-300
b.) x-300
c.) 1.07x
d.) 0.07x

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.